today in history

1. On November 25th, 1944, War of Resistance against Japan, China entered the stage of strategic counter-offensive, and China troops fought fiercely with Japanese troops in Changde and Hengyang.

2. On November 25th, 1965, China successfully conducted the flight explosion test of the first surface-to-surface missile with a nuclear warhead.

On November 25th, 1978, China and the United States issued the Joint Communiqué on the Establishment of Diplomatic Relations between the People’s Republic of China and the United States of America, announcing that the two countries formally established diplomatic relations the next day.

4. In 1984, the first carbon monoxide leakage accident that killed three tourists occurred, and many people were missing; Liaoning’s "Marshal’s Hometown", Laoting, Hebei, once again showed a series of related cases and past events that sounded the alarm for female cadres of supply and marketing cooperatives; It also caused a special report by Xinhua News Agency: It is this person who is now engaged in corruption and bribery-the disclosure form of all property of state public officials in May 4th, and we should be alert to this phenomenon!

The following are other important events that happened on November 25th in history:

5. In 1967, China carried out the first mechanized coal mining in Datong Coal Mine, which marked the great progress of coal mining technology in China.

6. In 1977, Queen Elizabeth II visited China, which was the first visit by a member of the British royal family to China since 1949.

7. In 1987, former British Prime Minister Margaret Thatcher visited China, which was her last visit to China during her term of office.

1. Baseball is a very interesting sport, which significantly improves physical fitness, IQ and EQ.

Hello, everyone, I am a vast ocean science, and welcome netizens to watch today’s headlines. < Baseball is a very interesting sport, which significantly improves physical fitness, IQ, EQ and cooperation spirit > Netizens, knowledge is a vast ocean. People are like a small fish in the ocean, and it is impossible to swim to every corner of the vast ocean. There are still many mysterious and unknown things around us waiting for us to examine, think and explore, so that we can realize that the world is so wonderful and knowledgeable. Without further ado, let’s start studying together!

Hey! Children, let’s learn how to play baseball together!

Baseball is a tense and interesting sport. It originated in the United States, and now it has spread in more than 60 countries on five continents. At the end of 19th century, this kind of movement was introduced to China by the United States and Japan.

Although baseball is small, it is changeable and wonderful to play, and unexpected things often happen. Whether you participate in the competition or watch it, it will be fascinating.

At present, baseball is not very popular in our country, and children must be very strange to this sport, but please don’t worry, I will tell you something about baseball now.

The baseball field is a right-angled fan, which is divided into infield and outfield. The infield is square, and there are three corners with bases, which are called first base, second base and third base. The last corner is the top of the court called home plate. There is no bag at home plate, only a pentagonal board is placed, which is called home plate.

Home plate is the starting point and the end point of the offensive players. The attacking team members hit the pitcher’s ball at home plate in turn, and then ran to the next base. When the next player plays ball, he can also take the opportunity to run to the next base. If an offensive player can run the first, second and third bases at one time and finally return to home plate, he will get 1 point.

The defender should wear gloves for catching the ball with one hand and try to catch the ball that the batter can hit. If he can catch the ball, the batter will be robbed and killed. If you can’t catch the ball, you should pick it up quickly, and then immediately pass it to the place where you need it, so that your partner can pass and kill the attacker who hasn’t had time to Jin Lei. If a total of three players on the attacking side are killed out, then the two sides will exchange offensive and defensive positions. The two teams attack and defend once each, making it a game. Adults have to play nine games, and children can play five games. In the end, which team scores more points will win.

Let’s share it with you today. Friends are welcome to leave me messages, comments and forward them to interact with me. Let’s come to today’s headlines to learn science, solve the problems of this ever-changing and colorful world, face many mysterious and unknown things, and face those strange and various natural phenomena. Pay attention to me, the next episode will be more exciting!

I’ll give you all the technical points of badminton entry!

Little friends who can’t play badminton or those who can’t play badminton around, forward them at will, pick up the racket quickly, and learn how to get started badminton correctly with Xiaobian!

Grip mode

To learn badminton, of course, we should start with the racket. Without weapons, how can we "fight"!

Forehand grip: The tiger’s mouth faces the small edge of the narrow face of the racket handle, and the thumb and forefinger are attached to the two wide faces of the racket handle. The forefinger and middle finger are slightly separated, and the middle finger, ring finger and little finger are close together to hold the racket handle, and the palms are not close together. The end of the racket handle is flat with the thenar muscle near the wrist, and the racket face is basically vertical to the ground.

Backhand grip: On the basis of forehand grip, the thumb and forefinger turn the grip slightly outward, with the thumb vertex on the wide surface or the inner edge of the grip, the middle finger, ring finger and little finger close together to hold the grip, and the grip end is close to the root of the little finger, leaving a gap in the palm. The racket leans to the left of the body, and the racket face leans back later.

Serve technique

After learning the grip, let’s see how to serve. A good serve is the premise of winning, because a bad serve will directly make you miss the opponent’s return.

Serve techniques can be divided into forehand and backhand techniques. Generally speaking, forehand serve can be used for serve before serve, serve flat, serve flat high, serve flat and serve before serve net.

Serve a high ball: The so-called high ball is to serve the ball high and far, so that the ball flies above the opponent’s backcourt. The flight path of the ball forms an angle with the ground, which is greater than 45 degrees, so that the ball falls vertically near the bottom line of the opponent’s court.

Forehand serve: The forehand serve is to serve the ball near the foreserve line in the opponent’s service area. When the racket touches the ball, it hits the ball obliquely from right to left, so that the ball just crosses the net and falls near the opponent’s foreserve line.

Backhand low serve: Backhand serve is characterized by fast serve speed and tricky landing. In particular, if the skill is mastered, try to hit the ball against the net when serving, fast, low, far and wide, that is, it falls near the boundary, leaving the opponent helpless. When hitting the ball, the racket face forms a small inclination angle (acute angle) with the badminton, which is just the opposite of the flat high ball, so that the ball hit is a low flat ball with faster speed.

Power technology

When it comes to badminton technology, we have to talk about the core "power" technology. If you want to crush an egg with your hand, you should use the strength of your thumb, forefinger and middle finger, not the strength of your whole hand. In the same way, for badminton, if you hold the racket tightly and use the strength of the whole palm to hit the badminton, it will be difficult to control the ball delicately and make the force concentrate on one point.

relax

Before playing ball, the body must relax and be in a state of readiness. In this relaxation, the most important thing is to relax the wrist, then the fingers will naturally relax, the racket will not be tightly held, and the swing action will not be stiff. In addition to the relaxation of the wrist, the waist and legs should be relaxed, and it is difficult to make strength when it is tightened. The body should also relax, so that the swing action can be achieved. Remember, the subtle differences in grip will also affect the force and swing speed.

Accelerated swing

The swing action must be a sudden action, and the swing process is an accelerated swing process, which must be explosive. The faster you swing out, the greater the impact on the ball. The process of playing the ball should be calm, the action should have a sense of rhythm, and the moment of hitting the ball suddenly accelerates.

Wrist flashing

This is the essence of badminton action, and it is also the most critical part of exerting strength. The so-called "flashing wrist" means that after throwing it out like a whip, the wrist should suddenly stop, instead of continuing to swing in the direction of the swing. This pause will make the initial speed of the ball extremely fast, but after passing the opponent, it will slow down and fall without going out of bounds.

As long as you can master these three points, you can play a quality ball even if the pace is not in place, the swing is not sufficient, the hitting point is not high enough, and so on.

Ball killing technique

Killing the ball is one of the most offensive ways in badminton, which includes jumping, forehand and backhand. When killing the ball, there should be light and heavy, slow and urgent.

Jump kill: the location of the jump kill is about three-quarters of the site. Stand with your feet shoulder width apart, your body at a 45-degree angle with the net, and your grip foot back. When preparing to jump, you should move backwards. After jumping up, the racket has its head raised above its head, and the racket is held in the forehand to hit the ball quickly and forcefully.

Forehand kill: generally, you should stand back, but don’t exceed the back sideline, sideways to the net, with your feet shoulder-width apart, your right arm bent upward to spread your chest and your left arm straight to keep your body balanced. Hit the ball simply and quickly. When killing the ball on the top of your head, lean back and contract your abdominal muscles to balance your body and return quickly.

Backhand killing: Choose the backhand killing position to be three-quarters of the court. When you are ready to hit the ball, turn your body to the left from the middle of the court, and turn your shoulders at the same time so that your elbow points downwards. Take the racket arm on the right side to make a good stroke, and swing your left arm backwards to keep your body balanced. When killing the ball reversely, turn your body to the right, push down the ground to increase your strength, shrink your back at the same time, turn your upper body and shoulders, turn your elbow upside down, and then stretch your elbow and forearm to hit the ball quickly. If you want to kill a straight ball, your shoulders should point to the center line at the moment of hitting the ball. After hitting the ball, quickly reverse your body and prepare for defense.

In badminton, the combination of killing the ball and controlling before the net will produce greater effect. It feels good to kill your opponent with one beat, but never think about killing your opponent with one beat. You should regard killing the ball as a means to attack your opponent and create better opportunities.

If you want to practice killing the ball well, you must first keep up with your wrist strength.

The position of the force should be correct, and it depends on the strength of the wrist "shaking" and "throwing".

You can find a rope to tie the ball to a high place and practice fixed click and smash. Experience the point of grabbing when killing the ball, and the point of shooting should be before the center of gravity.

Adjustment of landing point of killing ball

Try to straighten your arm to kill the ball, and the hitting point is slightly ahead, which can help you to exert enough force and make the angle sharper. Try to take off and kill the ball if possible, so that the hitting point is higher and the psychological threat to the opponent is greater.

Kill the ball with variety.

More changes make it easier to score goals without blindly pursuing the speed of killing the ball. Try not to kill if the opponent returns the ball in place.

Be good at finding each other’s killing habits.  

For an opponent who likes to catch and kill with his right hand all the time, he often subconsciously gives up a position to the left before catching and killing. At this time, it is necessary to kill the ball in advance and directly kill it under his left shoulder, which can be exactly what he wants.

Ball picking technique

Pick the ball must be in place, so that defense can achieve "twice the result with half the effort." So what should we do?

Forehand pick: Hold the racket in the forehand and hold it on your chest. Take a big step forward with your right foot, backward with your left foot, sideways with your center of gravity on your right foot. At the same time, the right arm swings backwards, naturally stretching the wrist to make the racket pull back. Then, take the elbow joint as the axis, bend your arm and rotate inward, hold the racket tightly, and hit the ball forward and upward with the strength of your index finger and wrist.

Backhand pick: Hold the racket on your chest with your backhand. Take a big step forward to the left with your right foot, and focus on your right foot. At the same time, the right shoulder is facing the net, and the elbow is flexed to lead the racket to the left shoulder. Then, with the elbow as the axis, hold the racket warp from bottom to top, press the wide surface of the racket handle with the first knuckle of the thumb, and hit the ball hard.

(Source: Badminton Teaching)